This came up today, I had to make the screen shots anyway. So to bring everyone up to speed; the project info can create custom multi line items for auto text very quickly and easily.
Go to File > Info > Project Info. From here you can select the section you want to add a new field to, and select Add. The new field needs a name, then just click the ellipses to type in paragraph form (not no tabs or indents allowed).
From here all you need to do is select the auto text icon in your text input menu (the A with recycle arrows), and track down the info field added. Again, individual lines can not be indented or edited separately if they are a single info input. If that is a requirement, you will need to create separate info lines for each text element.